This supports the board by the wheels, gets it out of the way and protects it from getting beat up.
Step 1: Material and tools
Fasteners - 2" drywall screws, EZ-anchors or Tapcons.
Table saw, miter saw and band saw. If you don't have these, a hack saw will do the whole job, it just takes a bit more work.
Drill press or hand drill
3/16 and 3/8 drill bits